12122021210212 has 48 divisors (see below), whose sum is σ = 22439318630400. Its totient is φ = 5718330984960.

The previous prime is 12122021210209. The next prime is 12122021210231. The reversal of 12122021210212 is 21201212022121.

It is a self number, because there is not a number n which added to its sum of digits gives 12122021210212.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1539037 + ... + 5158747.

It is an arithmetic number, because the mean of its divisors is an integer number (467485804800).

Almost surely, 2^{12122021210212} is an apocalyptic number.

It is an amenable number.

12122021210212 is a deficient number, since it is larger than the sum of its proper divisors (10317297420188).

12122021210212 is a wasteful number, since it uses less digits than its factorization.

12122021210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3620236 (or 3620234 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12122021210212 its reverse (21201212022121), we get a palindrome (33323233232333).

The spelling of 12122021210212 in words is "twelve trillion, one hundred twenty-two billion, twenty-one million, two hundred ten thousand, two hundred twelve".